RAFM钢TIG焊和电子束焊疲劳性能实验和分析模拟

利用ANSYS 对低活化铁素体马氏体(RAFM)钢进行非熔化极气体保护焊(TIG 焊)与电子束焊的抗疲劳模拟分析，再利用SDS200 电液伺服疲劳试验机对TIG 焊和电子束焊的两种RAFM 钢试件进行实验。通过施加相同梯度负荷对TIG 焊和电子束焊试件进行焊缝的疲劳性能实验。与实验结果对比分析，结果显示电子束焊优于 TIG 焊，但在一定负载下可以用TIG 焊代替电子束焊。     

CFETR真空室结构稳定性的有限元分析

真空室是中国聚变工程实验堆(CFETR)重要的屏蔽组件和包容屏障,为提高其结构稳定性,用有限元方法对真空室核心部件进行了线性屈曲分析与几何初始缺陷非线性屈曲分析,评估了真空室结构的各项稳定性指标。结果表明,现有的真空室的设计满足屈服强度的设计要求,为后续的设计优化工作提供了重要的理论依据和参考。     

基于CETOL平台的中国聚变工程实验堆真空室三维公差分析

The tolerance analysis of China Fusion Engineering Test Reactor vacuum vessel is performed using the CETOL tolerance analysis software based on the CATIA platform. Based on the three-dimensional solid model, the assembled targets of the vacuum vessel are simplified and subdivided. Tolerances are assigned according to the overall assembly requirements of the vacuum vessel, and tolerance analysis models are established. The critical dimensions affecting the target tolerances have been determined through the sensitivity and contribution, and the unreasonable tolerances have been redistributed to meet the tolerance requirements of the component, which is very useful to ensure the assembly quality of the vacuum vessel.